A deoxyribonucleic acid-deoxyribonucleic acid hybridization study (spectrophotometric method) showed that the species Hinz and Kunjara 1977 is composed of three deoxyribonucleic acid homology groups; these three groups are genetically closer to , the type species of the genus , than to , the type species of the genus . We propose to transfer the species to the genus as comb. nov. (type strain, ATCC 29546) and to change the circumscription of this taxon to include only strains that are unable to ferment L-arabinose, maltose, and mannitol and unable to hydrolyze -nitrophenyl-β-D-galactopyranoside. The name sp. nov. (type strain, NCTC 3438) is proposed for strains (formerly identified as ) that are unable to ferment L-arabinose and are able to ferment maltose and mannitol and to hydrolyze -nitrophenyl-β-D-galactopyranoside. A third unnamed species consists of former strains that are able to ferment L-arabinose.


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